Multithreading EXECs to the Normal, High, or Hot priority queues

Define multiple threads for the Normal, High, and Hot priority queues and the High priority queues in the BBPARM member AAOEXP00.

This process allows concurrent execution of multiple EXECs. 

Related topic

Scheduling-EXECs


Queue name

Parameter name

Example

Normal priority queue

MAXNORM=

Specify the number of threads on the MAXNORM= statement in BBPARM member AAOEXP00.

For example, the following parameter statement defines 10 threads for the Normal priority queue and 10 EXECs can run concurrently in the Normal priority queue:

MAXNORM=10

High priority queue

MAXHIGH=

Specify the number of threads on the MAXHIGH= statement in BBPARM member AAOEXP00.

For example, the following parameter statement defines five threads for the High priority queue and five EXECs can run concurrently in the High priority queue:

MAXHIGH=5

Hot priority queues

MAXHOTQ=

Specify the number of threads on the MAXHOTQ= statement in BBPARM member AAOEXP00.

For example, the following parameter statement defines that a maximum of ten EXECs can be queued as Hot or First priority EXECs to run in the Normal or High priority queues:

MAXHOTQ=10

See Example of output for the .D E ALL BBI control command for an example of the output of the .D E ALL command that shows the count for Normal, High, Hot and First priority EXECs. 

If you are operating with MAXNORM or MAXHIGH set to greater than one and then want to reset MAXNORM=1, you must ensure that no automation procedures are dependent on the concurrent execution of several EXECs.

Warning

Multithreading EXECs requires additional virtual storage in the BBI-SS PAS address space. If virtual storage is insufficient, the subsystem will fail with an x78 abend. Multithreading EXECs may also require variable serialization using ENQ/DEQ logic. See Sharing-variables-while-multithreading-EXECs for more information.

 

Tip: For faster searching, add an asterisk to the end of your partial query. Example: cert*